I try to tell him I am his daughter not his wife but he doesn't understand
the difference between the two he talks about wanting to have sex with me and he should be able to do anything he wants. He was very religious to extreme before this so this is really creepy for me and it's embarrassing to talk about to anyone. He gets irate if I try to reason with him. Should I just ignore him and walk out .I want to care for him as long as I can but need to know what to do. He is in a wheelchair but is up everyday and has no real physical problems except for bad knees and the Alzheimer. He is also almost totally deaf and wears hearing aids My parents were inseparable .until my mother died of Alzheimer's last year .Now he never mentions her at all like she never existed.
Many men with AD get sexually aggressive with female caregivers. But, as you say, it's feels even creepier when it's your dad.
Please try to understand that he can't help it. You may want to talk to his doctor. Occasionally, they give medication to handle this, but there are side effects. At least check, though. There may be something the doctor can do to make your life a bit easier. Good luck,
Carol